Handkerchief手帕.变为复数时为什么不用去ef直接加s变为复数.还有哪些单词也是这样的?请写多些噢

Question

Handkerchief手帕.变为复数时为什么不用去ef直接加s变为复数.还有哪些单词也是这样的?请写多些噢

Answer 1

下列12个以-f或-fe结尾的名词,须先将-f或-fe改成-v,再加-es.这些名词是：calf,half ,knife,leaf,life,loaf,self,sheaf,shelf,thief,wife,wolf 等.如：wife-wives,wolf-wolves,calf-calves.
以下几个名词scarf,wharf,hoof,handkerchief等的复数形式,可先将-f或-fe改成-v,再加-es；也可直接加-s
即scarfs或scarves,wharfs或wharves,hoofs或hooves,handkerchiefs或handkerchieves.
以f或fe 结尾的名词变复数时：加s,如：belief---beliefs roof---roofs
safe---safes gulf---gulfs；
去f,fe 加ves,如：half---halves
knife---knives leaf---leaves wolf---wolves
wife---wives life---lives thief---thieves；
上述a和b两种方法均可,如handkerchief:handkerchiefs / handkerchieves.